If 1:

If + S + am/is/are , S + will/can/shall... + V1

If + S + V1/s/es , S + will/can/shall... + V1

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Unless: trừ khi = If ... not 

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1. Unless Dany finishes his homework early, he can't watch TV.

2. Unless she comes to the meeting, she won't help you finish the project.

3. Unless Kai apologizes, I won't forgive him. 

4. Unless you finish your chores, you can't go out for dinner.

5. Unless Sunny works hard, she won't succeed.

6. Unless it snows, we will go hiking.

7. Unless they come to the party, we won't have a surprise for them.

8. Unless it is too hot tomorrow, we will have a party.

9. Unless Rose finishes her book. she won't publish it.

10. Unless they win the match. they won't advance to the finals.